| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new copolymer with high solubility and having absorption in a long wavelength region, that is suitable for a photoelectric conversion element. <P>SOLUTION: This copolymer has a repeating unit represented by general formula (1) and contains a (substituted) aryl group as a terminal group [wherein R<SP POS="POST">1</SP>represents a (substituted) alkyl, (substituted) alkenyl or (substituted) aryl; R<SP POS="POST">2</SP>to R<SP POS="POST">5</SP>each independently represents hydrogen, halogen, (substituted) alkyl, (substituted) alkenyl or (substituted) aryl]. <P>COPYRIGHT: (C)2012,JPO&INPIT |
